# Mathematics Seminars

## Spring 2024:

### April 29

Dr. Sameera Vemulapalli (Mathematics Department, Standford University): "Covers of P^1 and Number Fields"

### April 22

Dr. Pelle Steffens (Dept. of Mathematics, Technicial University of Munich): "Differential Geometric PDE Moduli Spaces: Derived Enhancements, Ellipticity and Representability"

### April 15

Benjamin Moldstad (Dept. of Mathematics, MSU): "Linearized Circle Actions"

### April 8

David Ayala (Dept. of Mathematics, MSU): "Homotopy types and their linearization"

### April 1

Lukas Geyer (Dept. of Mathematics, MSU): "Dynamical Teichmüller spaces for rational and transcendental maps"

### March 25

Peter McDonald (Dept. of Mathematics, University of Utah): "Splinter-type characterizations of singularities"

### March 18

Dr. Krystal Taylor (Dept. of Mathematics, Ohio State University): "Prescribed Projections and Efficient Coverings of Fractals in a Nonlinear Setting"

### March 4

Dr. Sam Gunningham (Dept. of Mathematical Sciences, MSU): "Geometric Satake Revisited"

### February 26

Dr. Ryan Grady (Dept. of Mathematical Sciences, MSU): "A Slew of Manifold Variants"

### February 12

Dr. Allechar Serrano Lopez (Dept. of Mathematical Sciences, MSU): "Counting elliptic curves with prescribed torsion"

### January 22

Dr. Blair Davey (Dept. of Mathematical Sciences, MSU.): "Parabolic Theory as a High-Dimensional Limit of Elliptic Theory"

## Fall 2023:

### November 13

Dr. Ana Balibanu (Dept. of Mathematics, Louisiana State Univ.): "Moment Maps in Geometric Representation Theory"

### November 6

Dr. Jarek Kwapisz (Dept. of Mathematical Sciences, MSU): "Sphere Packings and Euclidean Embeddings of Complex Projective Space for Non-coherent Classical and Quantum Applications"

### October 30

Dr. Ryan Grady (Dept. of Mathematical Sciences, MSU): "Black Holes and Entropy"

### October 23

Dr. Peter Crooks (Math and Statistics Dept., Utah State University): "New TQFTs valued in the Moore-Tachikawa category"

### October 16

Dr. Christopher Kuo (Dept. of Mathematics, UC-Berkeley): "Perverse Microsheaves"

### October 9

Dr. Allechar Serrano Lopez (Dept. of Mathematical Sciences, MSU): "Counting Number Fields"

### October 2

Dr. Lukas Geyer (Dept. of Mathematical Sciences, MSU): "Critically Fixed Anti-Thurston Maps"

### September 25

Dr. David Ayala (Dept. of Mathematical Sciences, MSU): Title of Talk is "Tangles"

### August 28

Dr. Sam Gunningham (Dept. of Mathematical Sciences, MSU): Title of Talk is "Skeins on Tori"

## Spring 2023:

### May 1

Dr. Alex McDonald (Dept. of Mathematics, The Ohio State Unversity): Title of Talk is "The Falconer distance problem and point configurations in fractal sets"

### April 26

Dr. Jenn-Nan Wang (National Taiwan University): Title of Talk is "Landis-type Conjecture for the Fractional Schrodinger Operator"

### April 24

Dr. Thomas Basile (Université de Mons, Belgium): Title of Talk is "Deformation Quantization, Conformal Geometry and Higher Spins

### April 17

Dr. Hiro Lee Tanaka (Dept. of Mathematics, Texas Stat Univ.): Title of Talk is "A Stable Homotopy Invariant for Legendrians in Jet Bundles"

### April 10

Dr. Blair Davey (Dept. of Mathematical Sciences, MSU): Title of Talk is "Generalizations of Landis' conjecture in the plane"

### April 3

Dr. Max Engelstein (School of Mathematics, University of Minnesota): Title of Talk is "Quantitative Stability and the Lojasiewicz inequality"

### March 24

PhD Defense, Anna Schenfisch (Department of Mathematics, MSU): Title of Talk is "Faithful Sets of Topological Descriptors and Algebraic $K$-Theory of Multi-Parameter Zig-Zag Persistence Modules"

### March 20

Dr. Peter Haine (Department of Mathematics, UC Berkeley): Title of Talk is "Reconstruction and étale homotopy theory"

### March 6

Dr. Elizabeth Gillaspy (Department of Mathematical Sciences, Univ. of MT): Title of Talk is "C*-Algebras for Nilpotent Lie Algebras"

### February 27

Abby Hickok (Mathematics Department, UCLA): Title of Talk is "Persistence Diagram Bundles: A Multidimensional Generalization of Vineyards"

### February 24

Dr. David Nadler (Dept. of Mathematics, UC Berkeley): Title of Talk is "Functions on Communting Stacks"

### February 2

Dr. Peter Bubenik (Dept. of Mathematics, Univ. of Florida): Title of Talk is "Morse Theory and Topological Data Analysis"

## Fall 2022:

### December 15

Zoya Batool, Kala Bertolino, and Warren Doyle (Dept. of Mathematical Sciences, MSU): Title of Talk is "Posets, Presheaves, (Co)limits, and Exit-Paths - Category Theory"

### December 5

Dr. David Ayala (Dept. of Mathematical Sciences, MSU): Title of Talk is "Morita-types of Reedy categories"

### November 28

Dr. Dmitri Pavlov (Dept. of Mathematics and Statistics, Texas Tech University): Title of Talk is "The Geometric Cobordism Hypothesis"

### November 14

Anna Schenfisch (Mathematics Department, MSU): Title of Talk is "Algebraic K-Theory of Zig-Zag Persistence Modules"

### November 7

Dr. Elizabeth Gillaspy (Mathematics Department, Univ. of MT): Title of Talk is "C*-algebras for nilpotent Lie algebras"

### October 31

Dr. Blair Davey (Dept. of Mathematics, MSU): Title of Talk is "Trapping Curves Inside of Fractals"

### October 24

Dr. Matthew Badger (Dept. of Mathematics, Univ. of Connecticut): Title of Talk is "3D Brownian motion and sets of dimension 2.99999 99999 99999."

### October 10

Dr. Ryan Grady (Dept. of Mathematical Sciences, MSU): Title of Talk is "How Knot to Find a Fractal"

### October 3

Dr. Harold Williams (Dept. of Mathematical Sciences, USC): Title of Talk is "Canonical Bases for Coulomb Branches"

### September 26

Dr. Lukas Geyer (Dept. of Mathematical Sciences, MSU): Title of Talk is "Hausdorff dimension of Julia sets"

### September 19

Dr. Sam Gunningham (Dept. of Mathematical Sciences, MSU): Title of Talk is "Deformation Quantization (Calculus) and Vanishing Cycles (Topology)"

### September 12

Dr. Jarek Kwapisz (Dept. of Mathematical Sciences, MSU): Title of Talk is "What Filter Banks have to do with Ergodic Theory"

### August 29

Dr. Jack Burkart (Dept. of Mathematics, Univ. of Wisconsin - Madison): Title of Talk is "Topology and Geometry of Multiply Connected Wandering Domains"

## Spring 2022:

### May 2

Dr. Monica Vazirani (Dept. of Mathematics, UC Davis): Title of Talk is "Combinatorics, Categorifcation, and Crystals"

### April 25

Dr. Dallas Albritton (Institute for Advanced Study, Princeton NJ): Title of Talk is "Non-uniqueness of Leray Solutions of the forced Navier-Stokes Equations."

### April 18

Dr. Sam Gunningham (Dept. of Mathematical Sciences, MSU): Title of Talk is "Langlands Duality for 3-Manifolds"

### April 11

Christopher McKay (Dept. of Mathematical Sciences, MSU): Ph.D. Defense "Critically Fixed Anti-Rational Maps, Thischler Graphs, and their Applications"

### March 28

Dr. Masoud Kamgarpour (Dept. of Mathematics, Univ. of Queensland): Title of Talk is "Arithmetic Geometry of Character Varieties"

### March 21

Dr. Silvia Ghinassi (Dept. of Mathematics, Univ. of Washington): Title of Talk is "On the Regularity of Singular Sets of Minimizers for the Mumford-Shah Energy."

### March 7

Tom Gannon (Dept. of Mathematics, Univ. of Texas - Austin): Title of Talk is "Categorical Representation Theory and The Coarse Quotient."

### February 28

Dr. Ryan Grady (Dept. of Mathematical Sciences, MSU): Title of Talk is "Bordism, Genera, and QFT."

### February 14

Dr. Arunima Ray (Max-Planck-Institut für Mathematik, Germany): Title of Talk is "Embedding Surfaces in 4-Manifolds."

### February 7

Dr. Blair Davey (Dept. of Mathematical Sciences, MSU): Title of Talk is "A Resolution to Landis' Conjecture in the Plane"

### January 31

Dr. Krystal Taylor (Dept. of Mathematical Sciences, Ohio State University): Title of Talk is "Configurations, Dimension, and Fractal Sets."

### January 24

Dr. Jarek Kwapisz (Dept. of Mathematical Sciences, MSU): Title of Talk is "Regularity of the Rotation Number for Circle Diffeomorphisms at Integrable Resonances."

## Fall 2021:

### December 6

Benjamin Moldstad (Dept. of Mathematical Sciences, MSU): Title of Talk is "Stratifications and Actions of the Circle Group"

### November 29

Adam Howard (Montana State University): Title of Talk is "Spaces of Immersions and their Homotopy Groups."

### November 15

Dr. Eric Fink (Montana State University): Title of Talk is "Markov Partitions for Hyperbolic Automorphisms of Nilmanifolds: Computatjional and Algorithmic Considerations."

### November 8

Dr. Kay Kirkpatrick (Dept. of Mathematics, Univ. of Illinois Urbana-Champaign): Title of Talk is "Dark Matter might be a Bose-Einstein Condensate of Axions."

### November 1

Dr. Chris Elliott (Mathematics Dept., UMass-Amherst): Title of Talk is "Kapustin-Witten Theory and Factorization Homology."

### October 25

Dr. Lukas Geyer (Dept. of Mathematical Sciences, MSU): Title of Talk is "Critically Fixed Maps in Dynamics"

### October 18

Dr. Sam Gunningham (Dept. of Mathematical Sciences, MSU): Title of Talk is "Electric-magnetic Duality in Topology, Geometry, and Number Theory."

### October 11

Dr. Ryan Grady (Dept. of Mathematical Sciences, MSU): Title of Talk is "Euler Characteristic, Curves, and K-Theory."

### October 4

Dr. David Ayala (Dept. of Mathematical Sciences, MSU): Title of Talk is "The 1-Dimensional Tangle Hypothesis."

### September 28

Dr. Sucharit Sarkar (Mathematics, ULCA): Title of Talk is "Link Floer Spectrum via Grid Diagrams."

### September 20

Dr. Aaron Mazel-Gee (Sherman Fairchild Instructor in Mathematics, Caltech): Title of Talk is "Reflection in Algebra and Topology."

### September 13

Dr. Mariana Smit Vega Garcia (Dept. of Mathematics, Western Washington Univ.): Title of Talk is "Almost Minimizers for Obstacle Problems."

### August 30

Dr. Karen Uhlenbeck (Institute for Advanced Study, Princeton NJ): Title of Talk is "Transverse Measures and Best Lipschitz and Least Gradient Maps."

## Spring 2021:

### April 19

Dr. Yumeng Ou (Dept. of Mathematics, University of Pennsylvania): Title of Talk is "On the Falconer distance problem and related questions."

### April 14

Eric Berry (Department of Mathematical Sciences, MSU): Ph.D. Thesis Defense, "Additivity of Factorization Algebras."

### April 12

Anna Schenfisch (Dept. of Mathematical Sciences, MSU): Title of Talk is "Posets of Topolgoical Descriptors"

### April 5

Dr. Renato Ghini Bettiol (Dept. of Mathematics, Lehman College of CUNY): Title of Talk is "Bifurcating Minimal Spheres in Ellipsoids."

### March 29

Dr. Brittany Terese Fasy (School of Computing and Mathematical Sciences/MSU): Title of Talk is "Directional Topological Descriptors for Shape Representation."

### March 23

Garrett Oren (Mathematical Sciences/MSU): Master's Thesis Defense, "Universal Property of Centers and Centralizers."

### March 22

Dr. Blair Davey (Mathematical Sciences/MSU): Title of Talk is "How to Obtain Parabolic Theorems from their Elliptic Counterparts."

### March 15

Dr. Sam Gunningham (Mathematical Sciences/MSU & University of Edinburgh): Title of Talk is "Finiteness for Skein Modules."

### March 8

Dr. David Ayala (Dept. of Mathematical Sciences, Montana State University): Title of Talk is "A Proof of the 1-Dimensional Cobordism Hypothesis, using Hochschild Homology."

### March 1

Dr. Jarek Kwapisz (Dept. of Mathematical Sciences, Montana State University): Title of Talk is "The Puzzle of Integrable Circle Maps."

### February 22

Dr. Joshua Zahl (Dept. of Mathematics, University of British Columbia): Title of Talk is "Dimension-expanding polynomials and the discretized Elekes-Ronyai theorem."

### February 8

Yajit Jain (Dept. of Mathematics/Northwestern University: Title of Talk is"Fiberwise Poincare-Hopf Theory and Exotic Smoothings of Manifold Bundles."

### February 1

Dr. Jarek Kwapisz (Dept. of Mathematical Sciences, MSU): Title of Talk is "Markov Partitions: from Decimal Expansions to Nilmanifolds."

### January 25

Dr. Albin Grataloup (University of Montpellier, FR): Title of Talk is "The Shifted Symplectic Geometry of Derived Intersections"

### January 11

Dr. Jenny Wilson (Dept. of Mathematics, University of Michigan): Title of Talk is "Representation Stability."

## Fall 2020:

### November 23

Chris McKay (Dept. of Mathematical Sciences, MSU): Title of Oral Exam is "Beyond the Classification of Critically Fixed Anti-Rational Maps"

### November 16

Eric Berry (Dept. of Mathematical Sciences, MSU): Title of Talk is "The Cohomology of Real Grassmannians via Schubert Stratifications."

### November 9

Dr. Brian Williams (Postdoc-Zelevinsky Research Instructor, Northeastern University): Title of Talk is "The Presymplectic BV Formalism and the M5 Brane."

### October 19

Dr. Richard Hind (Department of Mathematics, University of Notre Dame): Title of Talk is "Quantitative Symplectic Geometry"

### October 12

Dr. Kathryn Hess (Mathematics, École Polytechnique Fédérale de Lausanne): Title of Talk is "From Trees to Barcodes and Back Again"

### October 5

Dr. Ryan Grady (Dept. of Mathematical Sciences, MSU): Title of Talk is "Symplectic Geometry: 1700s--Today"

### September 28

Dr. Jarek Kwapisz (Dept. of Mathematical Sciences, MSU): Title of Talk is "Rational Mpas, Teichm\"{u}ller Space, and Elastic Graphs after Bill and Dylan Thurston"

### September 21

Dr. Blair Davey (Dept. of Mathematical Sciences, MSU): Title of Talk is "A Quantification of the Besicovitch Projection Theorem and Its Generalizations (Part 2)

### September 14

Dr. Blair Davey (Dept. of Mathematical Sciences, MSU): Title of Talk is "A Quantification of the Besicovitch Projection Theorem and Its Generalizations (Part 1)

### August 31

Dr. David Ayala (Dept. of Mathematical Sciences, MSU): Title of Talk is "Stratifications: Topological, Adelic, and Equivariant"

### August 24

Dr. Lukas Geyer (Dept. of Mathematical Sciences, MSU): Title of Talk is "Classification of Critically Fixed Anti-Rational Maps"

## Summer 2020:

### June 30

Eric Fink (Dept. of Mathematical Sciences, MSU), PhD Dissertation Presentation: "Markov Partitions and Sofic Codings for Anosov Diffeomorphisms of Nilmanifolds"

## Spring 2020:

### March 9

Dr. Anna Cepek (Institute of Basic Science: Center for Geometry & Physics, Pohang, South Korea): Title of Talk is "The Ran space and embedding calculus in application to knot theory"

### February 24

Dr. Jarek Kwapisz (Mathematical Sciences Dept, MSU): Title of Talk is "Quantum Adiabatic Theorem."

### February 10

Dr. Ryan Grady (Mathematical Sciences Dept, MSU): Title of Talk is "Representation Theory via TFT and Equivalent Hamiltonian Systems"

## Fall 2019:

### November 25

Dr. Anton Vorontsov (Physics Department, MSU): Title of Talk is "Crystallization of the phase in superconductors

### October 28

Eric Berry (Dept. of Mathematical Sciences, MSU): Title of Talk is "Additivity for factorization algebras"

### October 24

Elizabeth Gillaspy (Dept. of Mathematical Sciences, University of Montana): Title of Talk is "Wavelets, spectral triples, and Hausdorff measure for directed graphs"

### October 14

Ryan Grady (Dept. of Mathematical Sciences, MSU): Title of Talk is "Analytic Aspects of Effective BV Quantization"

### October 7

David Ayala (Dept. of Mathematical Sciences, MSU): Title of Talk is "Instances of the Cobordism Hypothesis"

### September 30

Megan Wawro (Mathematics Department, Virginia Tech): Title of Talk is "Student Reasoning about Linear Algebra in Quantum Physics"

### September 23

Adam Howard (Dept. of Mathematical Sciences, MSU): Title of Talk is "Bridge Number of Satellite Knots"

### September 16

Dr. Lukas Geyer (Dept. of Mathematical Sciences, MSU): Title of Talk is "Zeros of complex harmonic functions, gravitational lensing, and complex dynamics"

### September 9

Dr. Jarek Kwapisz (Dept. of Mathematical Sciences, MSU): Title of Talk is "Renormalization Operator for Conformal Dimension of Sierpinski Carpet"

## Spring 2019:

### January 25

Graduate Student, Anna Schenfisch (Mathematical Sciences): Title of Talk is "An Introduction to Elliptic Curves," and presented in the Geometry and Topology Seminar (Wilson 1-144, 2:10-3:00pm)

### January 31

Dr. Paul Wedrich (Mathematics, Australian National University): Title of Talk is "On Colored Link Homologies"

### February 6

Dr. Sam Gunningham (School of Mathematics, University of Edinburgh, UK): Title of Talk is "D-modules in Representation Theory and Topology"

### February 13

Dr. Emily Stark (Technion-Israel Institute of Technology, Haifa, Israel): Title of Talk is "The Geometry of Hyperbolic Groups"

### February 20

Dr. Charles Katerba (Mathematical Sciences, MSU): Title of Talk is "Searching for Closed Essential Surfaces in Knot Complements with Character Varieties"

### February 25

Dr. Mike Siddoway (Mathematical Sciences Dept, Visiting Professor at MSU from Colorado College: Title of Talk is "Closed Chains with Tetrahedral Links"

### April 1

Dr. Tomas Gedeon (Dept of Mathematical Sciences, MSU): Title of Talk is "A Combinatorial/Algebraic Topological Approach to Nonlinear Dynamics"

### April 8

Anna Cepek (PhD Student, Mathematical Sciences, MSU): Title of Dissertation Defense is "Configuration spaces of the circle and Euclidean spaces"

### April 10

Dr. Anja Randecker (Department of Mathematics, University of Toronto): Title of Talk is "Understanding (in)finite Translation Surfaces"

### April 15

Dr. Lukas Geyer (Mathematical Sciences, MSU): Title of Talk is "Notions of hyperbolicity in complex dynamics"

### April 25

Dr. Alex Zupan (Department of Mathematics, University of Nebraska): Title of Talk is "A special case of the Smooth 4-dimensional Poincaré Conjecture"

## Summer 2019:

### July 5

Dan Perry (PhD Student, Mathematical Sciences, MSU): Title of Dissertation Defense is "Homotopy Groups of Contact 3-Manifolds"